U.S. Route 40 in Maryland

Antietam Campaign Scenic Byway
Antietam Campaign Scenic Byway
Major junctions
West end	US 40 at Pennsylvania border near Keysers Ridge
	I-68 / US 219 near Grantsville; US 220 in Cumberland; US 522 in Hancock; I-81 near Hagerstown; US 340 in Frederick; I-70 / I-270 in Frederick; US 29 in Ellicott City; I-695 in Catonsville; US 1 in Baltimore; I-95 in Baltimore;
East end	US 40 at Delaware border in Elkton
Location
Country	United States
State	Maryland
Counties	Garrett, Allegany, Washington, Frederick, Carroll, Howard, Baltimore, City of Baltimore, Harford, Cecil
Highway system
	United States Numbered Highway System; List; Special; Divided; Maryland highway system; Interstate; US; State; Scenic Byways;

U.S. Route 40 (US 40) in the

Interstate 68 (I-68) or I-70, while the old alignment is generally known as US 40 Alternate, US 40 Scenic, or Maryland Route 144 (MD 144). West of Baltimore, in the Piedmont

and Appalachian Mountains / Blue Ridge region of the Western Maryland panhandle of the small state, the portions where it does not overlap an Interstate highway are mostly two-lane roads. The portion northeast of Baltimore going toward Wilmington in northern Delaware and Philadelphia in southeastern Pennsylvania is a four-lane divided highway, known as the Pulaski Highway (named for American Revolutionary War (1775–1783) foreign military volunteer of Polish cavalry officer Casimir Pulaski, 1745–1779). This section crosses the Susquehanna River at the north end of the Chesapeake Bay on the Thomas J. Hatem Memorial Bridge.

From Cumberland on the western branch of the Potomac River and terminus of the historic Chesapeake and Ohio Canal, west to Pennsylvania, US 40 is the successor to the historic route of the National Road, first Federal interstate road built in the early 19th century which eventually ran from Baltimore west, through Ohio, Indiana, and Illinois to Vandalia, then territorial capital of the Illinois Territory near the Mississippi River.

East of Cumberland, towards Baltimore, US 40 follows several former private company

Baltimore and Frederick-town Turnpike, later known as Frederick Road (MD 144) between Baltimore and Frederick

.

The route from Baltimore northeast to the

Baltimore and Havre-de-Grace Turnpike (now mostly bypassed and known as the Old Philadelphia Road, MD 7

).

Route description

US 40 enters Maryland from

divided highway through suburban areas, passing through Ellicott City.^[1]^[3] The route heads east through the city of Baltimore along city streets, with a freeway section located west of downtown Baltimore.^[2]^[3] US 40 continues northeast from Baltimore along Pulaski Highway, a multilane divided highway that runs parallel to I-95 through suburban areas, passing through Aberdeen. Between Havre de Grace and Perryville, the route crosses the Susquehanna River on the Thomas J. Hatem Memorial Bridge. US 40 continues east parallel to I-95 and leaves Maryland for Delaware in Elkton.^[1]^[3]

Throughout Maryland, US 40 is paralleled by several former alignments that are designated as U.S. or state highways. US 40 Alt. is designated along the former alignment between Keysers Ridge and Cumberland while another US 40 Alt. runs along the former alignment between Hagerstown and Frederick. US 40 Scenic is designated along a former alignment parallel to I-68/US 40 in eastern Allegany County and western Washington County. MD 144 is designated along several separate former alignments between Cumberland and Baltimore while MD 7 is designated along several separate former alignments between Baltimore and Elkton.^[1]^[3]

Garrett County

US 40 enters Maryland from

MD 826H, at which point it curves east and passes businesses as a four-lane undivided road before intersecting the western terminus of US 40 Alt. in the community of Keysers Ridge. At this point, US 40 Alt. continues east along National Pike while US 40 turns south onto a two-lane road and comes to a cloverleaf interchange with I-68 and US 219.^[1]^[3]

At this interchange, US 219 continues south along the two-lane road while US 40 heads southeast

MD 948D). Past this interchange, the freeway descends the mountain. I-68/US 40 heads east through a mix of farmland and woodland, ascending and descending two hills and crossing the Eastern Continental Divide. Farther east, the freeway curves southeast and comes to an interchange with MD 546 in Finzel. Following this, the road heads across forested Savage Mountain.^[1]^[3]

Allegany County

I-68/US 40 crosses into

US 220 Truck becomes concurrent with westbound I-68/US 40, splitting to head south along Vocke Road. From here, the freeway turns northeast and ascends forested Haystack Mountain. The road turns east and reaches the summit of the mountain, where it begins to descend the mountain. I-68/US 40 comes to a westbound ramp with Seton Drive that provides access to MD 49.^[1]^[3]

Following this, the freeway curves northeast and enters the city of

Wills Creek and the Western Maryland Scenic Railroad south of the Cumberland station, heading away from the North Branch Potomac River, before passing over the Chesapeake and Ohio Canal and coming to an interchange with MD 51 to the south of downtown Cumberland. Past this interchange, the road passes over CSX's Cumberland Terminal Subdivision railroad line south of the Cumberland station serving Amtrak's Capitol Limited train before it reaches a right-in/right-out interchange serving Maryland Avenue near homes and some businesses. From here, the freeway curves northeast and passes through wooded areas with nearby development before coming to a diamond interchange with the eastern terminus of US 40 Alt. and the western terminus of MD 639.^[1]^[3]

I-68/US 40/US 220 continues northeast through forested areas and leaves Cumberland, reaching an interchange with Hillcrest Drive (

Sideling Hill Creek.^[1]^[3]

Washington County

Upon crossing Sideling Hill Creek, I-68/US 40 enters

directional T interchange with I-70/US 522 near the town of Hancock, where US 40 continues east concurrent with I-70/US 522 on the Eisenhower Memorial Highway, a four-lane freeway. Soon after, US 522 splits from I-70/US 40 at a directional T interchange by heading south and providing access to Hancock. Following this, the freeway continues east across a forested hill, with a third lane for trucks while climbing the hill. The road comes to a westbound exit and eastbound entrance with the eastern terminus of the Hancock section of MD 144, where the median widens and it heads east through wooded areas with the Western Maryland Rail Trail, Chesapeake and Ohio Canal, and the Potomac River parallel to the south. I-70/US 40 comes to an eastbound exit and westbound entrance with MD 615 before MD 615 closely parallels the road to the north to a westbound exit and eastbound entrance at MD 615's southern terminus. Past this interchange, the freeway curves to the southeast.^[1]^[3]

US 40 splits from I-70 at an eastbound exit and westbound entrance, where it continues southeast onto two-lane undivided National Pike. The road passes through wooded areas with some fields and homes, curving to the east. In the community of

MD 739A loops to the south of the route. After crossing the mountain, the road turns east and enters the Hagerstown Valley, where it passes farm fields before entering the town of Clear Spring. In Clear Spring, the route becomes Cumberland Street and is lined with homes and some businesses, coming to a junction with the western terminus of MD 68. After leaving Clear Spring, US 40 becomes National Pike again and runs through agricultural areas with some woods and homes, intersecting the southern terminus of MD 57. The road continues east through rural areas and crosses Conococheague Creek before passing to the south of Hagerstown Speedway. The route runs through a mix of farmland, woodland, and development, crossing MD 63 before intersecting the western terminus of a section of MD 144 and curving northeast.^[1]^[3]

At this point, US 40 widens to a four-lane

Norfolk Southern's Hagerstown District lines and enters the commercial downtown of Hagerstown. At the intersection with Potomac Street, the road name changes to East Washington Street eastbound and East Franklin Street westbound. US 40 leaves downtown Hagerstown and the directions of the route rejoin as four-lane divided Dual Highway, intersecting the western terminus of MD 64 and passing a mix of homes and businesses. The road curves to the south-southeast and crosses Antietam Creek as it continues through developed areas, briefly widening to six lanes as it passes several businesses. At the southeastern edge of Hagerstown, the route reaches a cloverleaf interchange with I-70. Following this interchange, US 40 leaves Hagerstown and becomes National Pike, soon narrowing to a two-lane undivided road and passing through farmland and residential development with some woods. The road comes to an intersection with MD 66 in the community of Beaver Creek before it heads to the north of Mason-Dixon Dragway and the community of Mount Lena. Farther southeast, the route leaves the Hagerstown Valley as it ascends forested South Mountain, turning south and passing to the east of Greenbrier State Park. At the summit of the mountain, US 40 curves southeast and crosses over I-70 and the Appalachian Trail.^[1]^[3]

Frederick and Carroll counties

After crossing over I-70 and the Appalachian Trail, US 40 enters Frederick County and becomes Baltimore National Pike, heading southeast through forested areas to descend South Mountain as it passes to the south of South Mountain State Park. The road continues into the Middletown Valley and passes through a mix of farmland, woodland, and some residential and commercial development along a straight alignment. The route passes along the northeast border of the town of Myersville and comes to an intersection with MD 17. From here, US 40 continues southeast through agricultural land with some woods and development. Farther southeast, the road leaves the Middletown Valley and ascends forested Catoctin Mountain, passing south of Gambrill State Park and north of the community of Arch Bridge. The route passes near some fields and development at the summit before it heads south to descend the forested mountain, with I-70 parallel a short distance to the west. US 40 comes to a westbound exit to westbound I-70 and an eastbound entrance from eastbound I-70, at which point it turns east and becomes a four-lane divided highway. The road enters the city of Frederick and curves southeast. At this point, the route becomes West Patrick Street and passes businesses, coming to an intersection with the eastern terminus of US 40 Alt. US 40 turns back to the east and widens to six lanes, passing south of the former Frederick Towne Mall as it continues through a commercial strip known as the "Golden Mile" before coming to a partial cloverleaf interchange with the US 15 freeway. At this interchange, West Patrick Street continues east as a municipal street while US 40 heads south concurrent with US 15 on the four-lane Frederick Freeway. The median of the freeway widens as it passes between office buildings to the west and residential areas to the east. The freeway median narrows again as it curves southeast and comes to a partial cloverleaf interchange with Jefferson Street and the northern terminus of US 340, where US 15 splits from US 40 by heading southwest concurrent with US 340. From here, US 40 continues southeast along the Frederick Freeway past commercial development before it comes to an interchange with I-70 and the northern terminus of I-270.^[1]^[3]

At this point, the freeway continues southeast as part of I-270 while US 40 heads east to follow I-70 along the Baltimore National Pike, a six-lane freeway. The freeway heads east through business areas and passes south of Nymeo Field at Harry Grove Stadium, the home ballpark of the Frederick Keys baseball team, before crossing under MD 355 and coming to a single-point urban interchange with MD 85. The road passes over the Frederick Branch of CSX's Old Main Line Subdivision railroad line before it comes to an partial cloverleaf interchange with South Street and Monocacy Boulevard and a partial interchange with MD 144. Past this interchange, I-70/US 40 passes through fields before it leaves Frederick upon crossing the Monocacy River. The freeway runs near suburban residential development and woodland, curving southeast and coming to a partial interchange with the eastern terminus of the Frederick section of MD 144 in Bartonsville, with no eastbound exit. Past this interchange, the road continues east through wooded areas with some fields and development, with Old National Pike parallel a short distance to the north. I-70/US 40 passes south of the town of New Market and comes to a diamond interchange with MD 75 that serves the town. The freeway heads east through woodland with some farmland and nearby residential development, with Old National Pike parallel to the north and CSX's Old Main Line Subdivision parallel to the south. The road passes an eastbound weigh station and winds east, crossing over the railroad tracks before it reaches an eastbound truck rest area. I-70/US 40 comes to a partial cloverleaf interchange with MD 27 that serves the town of Mount Airy to the north, at which point it enters Carroll County. Past this interchange, the freeway runs through wooded areas between CSX's Old Main Line Subdivision to the north and MD 144 to the south, curving southeast and crossing the South Branch Patapsco River.^[1]^[3]

Howard County

Upon crossing the South Branch Patapsco River, I-70/US 40 enters Howard County and continues east-southeast along the Baltimore National Pike freeway through wooded areas with some fields and development, with Old Frederick Road parallel to the north and MD 144 parallel to the south. Farther east, Old Frederick Road and MD 144 continue parallel a further distance from the freeway before the freeway comes to a diamond interchange with MD 94 in Lisbon. Past this interchange, the road continues through rural land with some development and comes to the exit for MD 97 in Cooksville. I-70/US 40 runs east through a mix of farmland and woodland with some residential development, coming to a westbound weigh station. The freeway passes north of the Howard County Fairgrounds before it reaches a diamond interchange with MD 32 in West Friendship. Past this interchange, the road continues east through rural land and homes before US 40 splits from I-70 for the final time at an eastbound exit and westbound entrance.^[1]^[3]

Upon splitting from I-70, US 40 continues southeast along Baltimore National Pike, a four-lane at-grade divided highway. The road passes through wooded areas with some residential development as it heads into

Korean American businesses.^[4]^[5] The road narrows to four lanes and continues northeast through wooded residential neighborhoods. The route heads into forested areas in Patapsco Valley State Park and comes to a right-in/right-out access point to the Hollofield Area of the state park before it turns southeast and passes over the Patapsco River valley on a bridge.^[1]^[3]

Baltimore City and County

Upon crossing the Patapsco River, US 40 enters

Rolling Road and turns to the east-northeast, continuing past a mix of homes and businesses. US 40 comes to an interchange with I-695 (Baltimore Beltway) and heads south of the Westview Shopping Center as it continues east through commercial areas. Farther east, the road passes through a mix of residential neighborhoods and shopping centers.^[1]^[3]

US 40 leaves Baltimore County and enters the city of

Martin Luther King Jr. Boulevard.^[2]^[3]

After this, the freeway ends and US 40 resumes along the one-way pair of West Mulberry Street eastbound and West Franklin Street westbound, carrying three lanes in each direction. The route intersects the northern terminus of

Paul Laurence Dunbar High School before passing through the campus of The Johns Hopkins Hospital. Past the hospital, US 40 becomes a four-lane undivided road and continues past rowhouses and some businesses. Farther east, the route intersects Pulaski Highway and heads east-northeast along four-lane undivided Pulaski Highway, passing through commercial areas with some urban homes. The road intersects the western terminus of MD 150 at Haven Street before it passes under an abandoned railroad line and then Amtrak's Northeast Corridor. The route continues through industrial areas and passes under CSX's Baltimore Terminal Subdivision railroad line before it widens to a six-lane divided highway and reaches a partial cloverleaf interchange with MD 151 (Erdman Avenue) and the eastern terminus of US 40 Truck that also includes a ramp to southbound I-895 accessible from eastbound US 40. A short distance later, US 40 crosses I-895, with a ramp from northbound I-895 to eastbound US 40. The road continues northeast through commercial areas and comes to a partial interchange with Moravia Road, with no eastbound entrance. Past this, US 40 reaches a partial interchange with I-95, with a ramp from westbound US 40 to southbound I-95 and a ramp from northbound I-95 to eastbound US 40; the missing movements are provided via Moravia Road and I-895.^[2]^[3]

US 40 from Martin Boulevard (MD 700) interchange overpass. Left photo from May 1953; right photo from August 2019

US 40 leaves Baltimore and crosses back into Baltimore County, where it becomes maintained by the state again. The route continues northeast along Pulaski Highway into

Little Gunpowder Falls.^[1]^[3]

Harford County

Upon crossing Little Gunpowder Falls, US 40 enters Harford County and continues northeast along Pulaski Highway, with CSX's Philadelphia Subdivision parallel a short distance to the northwest. The route runs through business areas with some woods, curving east and passing through the community of Joppa. The road comes to an intersection with MD 152 and continues into Edgewood, heading through more commercial areas. US 40 reaches a junction with the northern terminus of MD 755, which heads south to provide access to MD 24. Past this junction, the route heads into wooded areas and passes under MD 24 and over Winters Run before it curves northeast and intersects a two-way ramp that connects to MD 24. The road runs past businesses before it heads through wooded areas between the closely parallel CSX line to the northwest and a branch of the Bush River to the southeast. US 40 passes through forests before it heads past a mix of homes and businesses in Abingdon. The road crosses the Bush River and continues between the railroad tracks to the northwest and the river to the southeast as it runs through wooded areas. The route heads northwest of an office park before it passes under MD 543 and then intersects the southern terminus of that route in Riverside, with MD 543 making a 180-degree turn to intersect US 40. Following this, US 40 runs between the CSX line to the northwest and a mix of woods and homes to the southeast before crossing Grays Run, where the name changes to South Philadelphia Boulevard. The road heads further from the railroad tracks and passes through a mix of woodland and commercial development. The route comes to an intersection with the eastern terminus of the section of MD 7 that began near Baltimore and the northern terminus of MD 159.^[1]^[3]

Past this intersection, US 40 enters the city of

MD 763 before heading northeast across the Susquehanna River.^[1]^[3]

Cecil County

While crossing the Susquehanna River, US 40 enters

Port Road Branch railroad line before descending off the Thomas J. Hatem Memorial Bridge, where it passes a pair of weigh stations. US 40 becomes state-maintained again and follows four-lane divided Pulaski Highway northeast to an intersection with MD 222. Following this, the road passes through business areas with some woodland to the south. The route becomes paralleled by CSX's Philadelphia Subdivision to the north for a short distance before it passes east-northeast between commercial development to the north and residential areas to the south. US 40 leaves Perryville and continues through a mix of farm fields and woods with some commercial development, coming to an intersection with the eastern terminus of a section of MD 7 that serves Perryville. The route passes a pair of abandoned weigh stations as it runs through a mix of woods and sand quarries, with another section of MD 7 splitting to the southeast. The road continues northeast and passes north of a sand quarry as it continues through forested areas with some residential and commercial development including warehouses.^[1]^[3]

US 40 approaches the town of North East and heads into business areas, reaching an intersection with MD 272. It briefly passes through a sliver of North East as it passes more development before it curves east, crossing North East Creek and Little North East Creek in a wooded area. The road passes near a cluster of businesses near the Mechanics Valley Road junction and continues east through forested areas with some residential and commercial development. Farther east, US 40 reaches an intersection with the eastern terminus of the section of MD 7 passing through North East and the southern terminus of MD 279. Past this intersection, the route heads into the town of Elkton and curves east-southeast, passing over Little Elk Creek and Amtrak's Northeast Corridor in a wooded area. The road runs through commercial areas with some homes before it comes to a bridge over Big Elk Creek in woodland. US 40 heads into business areas, crossing MD 213 and curving east at the White Hall Road intersection. The route turns to the north-northeast and passes commercial development with some woodland, coming to a junction with the eastern terminus of a section of MD 7 that leads into the center of Elkton. US 40 heads through business areas and intersects the southern terminus of MD 781 before it reaches the Delaware state line, where US 40 continues into that state along Pulaski Highway.^[1]^[3]

History

The

Baltimore and Havre-de-Grace Turnpike, chartered in 1813 and opened 1825,^[9] went northeast from Baltimore to Havre de Grace on the west bank of the Susquehanna River, and public roads continued from Perryville, across the Susquehanna River on its east bank from Havre de Grace to Elkton near the "Head of Elk" on the Elk River at the northern end of the Chesapeake Bay, and thence into Delaware

. Of all the aforementioned roads, few still carry US 40 today.

West of Baltimore, the National Road and the Bank Road were incorporated into the National Old Trails Road in the mid-1910s.[10] East of Havre-de-Grace, the road became part of the Capitol Trail linking Philadelphia and Atlanta via Washington,^[11] though it took a more northerly route than the modern route to service Bel Air via MD 22 and US 1. In 1926, the designation of US 40 superseded both of these routes.

As traffic increased through the early 20th century, new roadway bypassed the original highways, with the old alignments receiving new monikers. With the construction of the Pulaski Highway east of Baltimore, the old alignment became MD 7.^[12] By 1939, a bypass of Ellicott City had been constructed, signed as US 40 Bypass.^[13] In 1948, the two alignments were swapped, with the old highway becoming US 40 Alternate,^[14] and with the construction of a new freeway to Lisbon, both old alignments became part of MD 144.^[15] By 1948, a new alignment had also been built from Frederick to Hagerstown, and the old alignment became the current US 40 Alternate. With the construction of I-70 and I-68, the existing segments of US 40 at freeway standards (the road from Frederick to Baltimore, the road west of Hancock, and the bypass of US 40 Scenic constructed in 1965) were incorporated into the new interstates. The sections of at-grade highway bypassed by I-68 had US 40 rerouted off of them onto the new interstate, with the section from Cumberland to Keyser's Gate becoming a new US 40 Alternate, with remaining sections becoming an extension of MD 144.

From 1960 to 1969, plans for an East-West Expressway, which was to be a continuation of I-70N into the city before ending as a segment of I-95, called for part of it to be built in the Franklin-Mulberry corridor, which was then the one-way couplet for US 40. In 1969, the East-West Expressway was scrapped and replaced with a new, differently-routed spur numbered as I-170, which did get built in the same corridor, but was cancelled by 1989. As a result, US 40 was rerouted onto the 1.39-mile (2.24 km) freeway, with Mulberry and Franklin streets acting as local frontage roads.

The long arches of the US 40 bridge over the upper / western branches of the Patapsco River in Ellicott City, originally constructed in 1936, were replaced in a project that started in the spring of 2011 and was expected to be completed in 2013. During the bridge replacement, temporary parallel bridges were constructed to serve traffic for the first time in a major bridge project in Maryland.^[16]

As part of the east–west Red Line light rail project that was cancelled in 2015 by new Governor of Maryland Larry Hogan and then revived in 2023 by his successor Wes Moore, segments of Edmondson Avenue and Franklin Street on the west side of the city are to be widened to allow construction of the future east–west light rail line inside the median area. The Red Line will also utilize the median of the short US 40 expressway stub (formerly planned for the cancelled extension of I-70) along the Franklin Street - Mulberry Street corridor in West Baltimore.

In December 2016, Governor Hogan designated the portion of US 40 through Ellicott City as "Korean Way", paying homage to the many Korean American businesses and residents of Howard County.^[4]^[5]

Junction list

County	Location	mi ^[1]^[2]	km	Exit	Destinations	Notes
Garrett		0.00	0.00		US 40 west / Historic National Road – Uniontown	Pennsylvania state line; western terminus of US 40 in Maryland
	US 40 Alt. east / Historic National Road – Grantsville, Cumberland
		3.74	6.02	14	I-68 west (National Freeway) / US 219 south (Garrett Highway) – Morgantown, Oakland	Split into exits 14A (US 219) and 14B (US 40); west end of concurrencies with I-68 and US 219
	Grantsville	9.12	14.68	19	MD 495 (Bittinger Road) – Grantsville, Swanton
		12.18	19.60	22	US 219 Bus. north (Chestnut Ridge Road) – Meyersdale, PA	East end of concurrency with US 219; southern terminus of US 219 Bus.
		13.90	22.37	24	Lower New Germany Road ( MD 948D )
	Finzel	19.70	31.70	29	MD 546 (Finzel Road) – Finzel
Allegany	Frostburg	23.24	37.40	34	Midlothian Road (MD 736) – Frostburg
	Frostburg	24.93	40.12	36	MD 36 (New Georges Creek Road) – Frostburg, Westernport
	La Vale	No exit eastbound; eastbound entrance ramp is from MD 53
	La Vale	29.85	48.04	40	MD 658
	Cumberland	31.46	50.63	41	Seton Drive to MD 49	Westbound exit only
		32.24	51.89	42	US 220 south (McMullen Highway) / Greene Street north – McCoole, Keyser, WV	West end of concurrency with US 220
		33.51	53.93	43A	Johnson Street – Ridgeley, WV	Eastbound exit and entrance
		33.51	53.93	43A	Beall Street – Ridgeley, WV	No eastbound exit
		33.80	54.40	43B	Airport
		33.82	54.43	43C	Downtown
		34.14	54.94	43D	Maryland Avenue	Right-in/right-out interchanges
		34.77	55.96	44	US 40 Alt. west (Baltimore Avenue) / MD 639 south (Willowbrook Road) / Historic National Road
		35.69	57.44	45	Hillcrest Drive	Right-in/right-out interchanges with Rannells Road eastbound and Hillcrest Drive westbound, which are unsigned MD 952A , respectively
		36.39	58.56	46	MD 144 (Naves Cross Road)	Westbound exit and entrance
		37.09	59.69	47	US 220 north / MD 144 / Historic National Road – Bedford	Signed as exit 46 eastbound; east end of concurrency with US 220
		41.18	66.27	50	Pleasant Valley Road ( MD 948AD) – Rocky Gap State Park
		42.42	68.27	52	National Pike )	Eastbound exit, westbound entrance
	MD 948AM
		52.84	85.04	62	US 40 Scenic (Fifteen Mile Creek Road)
		54.11	87.08	64	M.V. Smith Road ( MD 948AL )
		58.64	94.37	68	Orleans Road ( MD 948Z )
		61.56	99.07	72	MD 948Y
MD 903 ; east end of concurrency with US 40 Scenic
		67.07	107.94	77	National Pike) / MD 144 east (Western Pike) / Woodmont Road
	US 522 – Breezewood, Hancock, Winchester	Split into exits 82A (US 522), 82B (I-70 / US 40), and 82C (I-70 / US 522) eastbound; split into exits 1A (I-68 / US 40) and 1B (US 522 south) westbound; eastern terminus of I-68; west end of concurrency with I-70
	US 522 – Breezewood, Hancock, Winchester	73.50	118.29	3	MD 144 (Main Street) / Historic National Road / C&O Canal Byway – Hancock	No westbound entrance
		74.40	119.74	5	MD 615 (Millstone Road)	Eastbound exit, westbound entrance
		75.85	122.07	5	MD 615 (Millstone Road)	Westbound exit, eastbound entrance
	Indian Springs	79.17	127.41	9	I-70 east (Eisenhower Memorial Highway) / C&O Canal Byway – Hagerstown	Eastbound exit from and westbound entrance to I-70; east end of concurrency with I-70
	Clear Spring	86.57	139.32		MD 68 east (Mill Street) to I-70 – Williamsport
		88.97	143.18		MD 57 north (St. Paul Road)
	Huyett	93.51	150.49		MD 63 (Greencastle Pike) to I-70 – Cearfoss, Williamsport
	Hagerstown	94.75	152.49		MD 144 east (Washington Street)
		96.23	154.87		I-81 (Maryland Veterans Memorial Highway) to I-70 – Roanoke, Harrisburg	I-81 Exit 6
		96.61	155.48		MD 910 south (Western Maryland Parkway)	Officially MD 910C
		97.63	157.12		US 11 (Burhans Boulevard)
					Historic National Road (Potomac Street)	To US 40 Alt
		98.68	158.81		MD 64 east (Cleveland Avenue) – Smithsburg
		101.72	163.70		I-70 (Eisenhower Memorial Highway) to I-81 – Hancock, Frederick	I-70 Exit 32
	Beaver Creek	104.53	168.22		MD 66 (Mapleville Road) to I-70 – Smithsburg, Boonsboro
Frederick	Myersville	111.03	178.69		MD 17 (Wolfsville Road) – Middletown
	Braddock Heights	118.41	190.56		I-70 west (Eisenhower Memorial Highway) – Hagerstown	I-70 Exit 48; westbound exit, eastbound entrance
	Frederick	119.68	192.61		US 40 Alt. west / Historic National Road – Braddock Heights, Middletown	No direct access from eastbound US 40 to westbound US 40 Alternate or from eastbound US 40 Alternate to westbound US 40
		121.09	194.88	13	US 15 north (Frederick Freeway) / Historic National Road (Patrick Street east) – Gettysburg	split into exits 13A (Patrick Street) and 13B (US 40 west); west end of concurrency with US 15
		121.82	196.05	12	US 340 west (Jefferson National Pike) / Jefferson Street east – Leesburg, Charles Town	East end of concurrency with US 15
		122.44	197.05	53	I-70 west / I-270 south (Eisenhower Memorial Highway) – Hagerstown, Washington	Split into exits 53A (I-270) and 53B (US 40 west); west end of concurrency with I-70
		123.60	198.91	54	MD 85 (Buckeystown Pike) to MD 355 / Market Street	Single-point urban interchange
		124.15	199.80	55	South Street	Westbound ramps are with Monocacy Boulevard
		124.68	200.65	56	MD 144 (Patrick Street)	No westbound entrance
	Bartonsville	128.04	206.06	59	MD 144 west (National Road)	No eastbound exit
	New Market	131.75	212.03	62	MD 75 (Green Valley Road) – Libertytown, Hyattstown
Carroll	Mount Airy	137.19	220.79	68	MD 27 (Ridge Road) – Mount Airy, Damascus
Howard	Lisbon	142.58	229.46	73	MD 94 (Woodbine Road) – Lisbon, Woodbine
	Cooksville	145.75	234.56	76	MD 97 (Hoods Mill Road) – Westminster, Olney
	West Friendship	149.42	240.47	80	MD 32 (Sykesville Road) – Sykesville, Clarksville
	West Friendship	151.54	243.88	82	Baltimore	Eastbound exit from and westbound entrance to I-70; east end of concurrency with I-70
	Ellicott City	154.13	248.05		MD 144 west (Frederick Road) / Historic National Road
					Historic National Road (Frederick Road)
		157.10	252.83		US 29 (Columbia Pike) to I-70 – Columbia, Frederick	US 29 Exit 24
		159.25	256.29		Patapsco Valley State Park Hollofield Area	Right-in/right-out interchanges in both directions
Baltimore	Catonsville	162.28	261.16		I-695 (Baltimore Beltway) – Glen Burnie, Towson	I-695 Exit 15
US 40 Truck east (Hilton Parkway) / Hilton Parkway south		Cloverleaf interchange
		167.31	269.26		Mulberry Street east to US 1 (Monroe Street/Fulton Avenue)	Eastbound exit, westbound entrance (from Franklin Street)
		168.36	270.95		Martin Luther King Jr. Boulevard	Diamond interchange
		168.57	271.29		MD 295 south (Greene Street)	Greene Street is one-way southbound
		168.64	271.40		MD 129 north (Paca Street)	Paca Street is one-way northbound
		169.02	272.01		Charles Street north	Charles Street is one-way northbound
		169.09	272.12		MD 2 south (St. Paul Street)	No access to northbound MD 2
		171.86	276.58		MD 150 east (Haven Street)
		172.59	277.76		I-895 south (Harbor Tunnel Thruway)	Cloverleaf interchange; movements from eastbound US 40 to northbound MD 151 and from northbound MD 151 to eastbound US 40 made via Armistead Way; I-895 Exit 13
		173.58	279.35		Moravia Road to I-895 / I-95 north	No eastbound entrance
		173.76	279.64		I-95 south – Washington	I-95 Exit 61; ramps from westbound US 40 to southbound I-95 and northbound I-95 to eastbound US 40
Baltimore	Rosedale	174.12	280.22		MD 7 east (Philadelphia Road)
	Rosedale	176.63	284.26		I-695 (Baltimore Beltway) / Golden Ring Road north – Essex, Towson	I-695 Exit 35
	Middle River	177.96	286.40		MD 700 south (Martin Boulevard)	Trumpet interchange
	White Marsh	180.84	291.03		MD 43 (White Marsh Boulevard) to I-95	Two-way ramp between US 40 and MD 43 plus a ramp from westbound US 40 to westbound MD 43
Harford	Joppatowne	187.54	301.82		MD 152 (Magnolia Road/Mountain Road) to I-95
	Edgewood	189.21	304.50		MD 755 south (Edgewood Road) to Edgewood Road north south / MD 24
	Edgewood	189.78	305.42		To Bel Air	Two-way ramp between US 40 and MD 24 is MD 24D (Otter Creek Ramp)
	Riverside	193.93	312.10		MD 543 north (Riverside Parkway) to I-95
	Aberdeen	196.13	315.64		MD 7 west / MD 159 south (Old Philadelphia Road)
		196.94	316.94		Aberdeen Proving Ground	Trumpet interchange
		198.52	319.49		MD 132 (Bel Air Avenue)	Officially MD 132B
		199.03	320.31		Bel Air	Partial cloverleaf interchange
	Havre de Grace	200.28	322.32		MD 132 west (Oakington Road)
		201.72	324.64		MD 7 east (Revolution Street) – Havre de Grace	Officially MD 7A
		203.10	326.86		MD 7 west (Otsego Street) / MD 155 west (Ohio Street) to I-95 / Otsego Street west – Havre de Grace, Churchville	Officially MD 7A; last eastbound exit before toll
Susquehanna River		203.41– 204.90	327.36– 329.75	Thomas J. Hatem Memorial Bridge (eastbound toll; E-ZPass or pay-by-plate)
Cecil	Perryville	205.21	330.25		MD 222 (Perryville Road/Aiken Avenue) to I-95 – Port Deposit, Perryville, VA Hospital
		207.98	334.71		MD 7 west (Principio Furnace Road) – Perryville	Officially MD 7B
		208.45	335.47		MD 7 east (Old Philadelphia Road) – Charlestown, North East	Officially MD 7C
	North East	212.33	341.71		MD 272 (Mauldin Avenue/North East Road) to I-95 – Cecil College, Bay View, North East, Charlestown
	Elkton	217.43	349.92		MD 7 west (Old Philadelphia Road) / MD 279 north (Elkton Road) to I-95 – North East, Newark	Officially MD 7C
		218.91	352.30		MD 213 (Bridge Street/Augustine Herman Highway) – Elkton, Chesapeake City
		220.25	354.46		MD 7 west (Delaware Avenue) – Elkton	Officially MD 7D
		221.08	355.79		MD 781 north (Delancy Road)
		221.31	356.16		US 40 east (Pulaski Highway) – Glasgow	Delaware state line; eastern terminus of US 40 in Maryland
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Electronic toll collection Incomplete access